There will be times that other fanciers have to use your pigeons as parents for their birds. For example when you lend out birds to eachother for cross breeding. In this case you will have to add the other fancier as a co-breeder. This way he or she will be able to use the pigeon as a parent.
Simply add the user as a co breeder by typing their emailadress and clicking
If everything went correct you will now see the user added as a co breeder!